Distorted front cover
Posted: Mon Jun 12, 2017 10:28 pm
Hello
After stripping down the engine on my +2 have found a problem I would appreciate some advice before proceeding. The surface of the front cover on the side running alongside the timing chain damper is seriously distorted, bowing about 2mm over its length so that the damper pad is proud of the cover at one point. The distortion is offset to some extent by a corresponding bow in the opposite direction on the back plate but the front and back plates do not mate perfectly.
Can the surface of the front and back covers be machined flat without affecting the seal and operation of the water pump? Are there tolerances for re-assembly and for skimming? Is a new cover the only long-term option? I was planning to use Loctite 518 as a gasket, which has a max gap size of 0.3mm, but can't see how the cover can be replaced in this condition without risking oil leaks.
If I do need to replace the front cover, is anybody able to offer a serviceable second hand part for less than the cost of a new replacement ?
Many thanks
Tim
After stripping down the engine on my +2 have found a problem I would appreciate some advice before proceeding. The surface of the front cover on the side running alongside the timing chain damper is seriously distorted, bowing about 2mm over its length so that the damper pad is proud of the cover at one point. The distortion is offset to some extent by a corresponding bow in the opposite direction on the back plate but the front and back plates do not mate perfectly.
Can the surface of the front and back covers be machined flat without affecting the seal and operation of the water pump? Are there tolerances for re-assembly and for skimming? Is a new cover the only long-term option? I was planning to use Loctite 518 as a gasket, which has a max gap size of 0.3mm, but can't see how the cover can be replaced in this condition without risking oil leaks.
If I do need to replace the front cover, is anybody able to offer a serviceable second hand part for less than the cost of a new replacement ?
Many thanks
Tim